Guide device for assembling screw pump

Abstract

The utility model discloses a guide device for screw pump assembly, which relates to the technical field of screw pump assembly and comprises a base, the top of the base is provided with a mounting groove, the top of the mounting groove is provided with a feeding component, two sides of the top of the base are fixedly connected with supporting plates, and the tops of the outer sides of the supporting plates are provided with limiting components. The positioning end of the limiting assembly penetrates and extends to the inner side of the supporting plate, the guiding assembly is assembled on the supporting plate below the limiting assembly, and the guiding part of the guiding assembly is located on the inner side of the supporting plate; and the lifting hooks are provided with butt joint components in a hanging mode, and the lifting hooks jointly lift the pump core through the butt joint components. According to the utility model, the limiting assembly is matched with the guiding assembly to perform butt joint guiding, so that the pump core in a limiting state can be guided and conveyed, and the guiding effects of transverse positioning and vertical guiding are realized; the quick butt joint device is simple in structure, convenient to operate, small in occupied space and effectively suitable for quick butt joint combination between the pump shell and the pump core.

Description

Technical Field

[0001] This utility model relates to the field of screw pump assembly technology, specifically a guide device for screw pump assembly. Background Technology

[0002] Screw pumps, as a type of high-precision positive displacement pump, are widely used in petroleum, chemical, and wastewater treatment industries. Their core structure includes the pump casing and the pump core (rotor and stator assembly). During assembly, the pump core must be precisely inserted into the pump casing, and the axial positioning must meet the design requirements.

[0003] Currently, the assembly of large screw pumps mainly relies on manual guidance. The specific operation process is as follows: the pump core is suspended by the lifting equipment and initially aligned with the pump casing inlet. The operator manually adjusts the position of the pump core to ensure that its bottom is aligned with the pump casing port. Under manual guidance, the lifting equipment is controlled to lower the pump core until it reaches the specified installation depth.

[0004] However, manual guidance relies on operational experience and requires repeated adjustments to the alignment, resulting in a slow assembly process. Manual calibration is easily affected by human factors, making it difficult to ensure complete coaxiality between the pump core and the pump casing, which may cause vibration or wear during operation. Utility Model Content

[0005] The purpose of this invention is to provide a guide device for screw pump assembly to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a guide device for assembling a screw pump, comprising: a base, the top of which is provided with an installation groove, a feeding component is assembled on the top of the installation groove, support plates are fixedly connected to both sides of the top of the base, a limiting component is assembled on the top of the outer side of the support plate, and the positioning end of the limiting component extends through to the inner side of the support plate, a guide component is assembled on the support plate below the limiting component, and the guide part of the guide component is located on the inner side of the support plate;

[0007] The hook is equipped with a docking component, and the pump core is lifted by the hook and the docking component together.

[0008] The feeding assembly includes a threaded rod, a guide seat, and a placement groove. The guide seat is slidably connected to the bottom of the mounting groove, and the placement groove is fixedly connected to the top of the guide seat. The threaded rod is threadedly connected to the guide seat inside the mounting groove.

[0009] The guide assembly includes an electric telescopic cylinder, a mounting shell, a guide block, and a positioning rod. The electric telescopic cylinder is fixed to the outside of the support plate. The output end of the electric telescopic cylinder passes through the support plate and is connected to the mounting shell. The guide block is slidably connected inside the mounting shell, and the positioning rod is fixed to the outside of the guide block.

[0010] Preferably, the bottom of the mounting groove is fixedly connected to two sets of guide rails, and the guide rails are slidably connected to the guide seat.

[0011] Preferably, the limiting component includes opposing threaded rods, guide blocks, limiting plates, and mounting seats. A guide opening is provided on the support plate, and two sets of mounting seats are fixedly connected to the outer side of the support plate. Opposing threaded rods are installed in the mounting seats, and two sets of guide blocks are threaded onto the opposing threaded rods. A limiting plate that penetrates the guide opening is fixedly connected to the side of the guide block.

[0012] Preferably, two sets of sliding rods are fixedly connected to the inner side of the mounting shell, the sliding rods penetrate the support plate, and a threaded rod is installed inside the mounting shell, and the guide block is threadedly connected by the threaded rod. A guide rail is fixedly connected to the inner wall of the mounting shell, and the guide rail is slidably connected to the guide block.

[0013] Preferably, the docking component includes a docking rod and a threaded post. The docking rod is hung on the hook, and the threaded post is installed at the bottom of the docking rod. The docking rod is provided with positioning holes and hanging openings. The positioning holes are matched with the positioning rods, and the hanging openings are matched with the hooks.

[0014] Preferably, one end of each of the threaded rod one, threaded rod two, and opposing threaded rods is equipped with a servo motor for driving rotation.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Simple structure, easy operation, small space occupation, and effective for quick docking and assembly between pump casing and pump core;

[0017] 2. The limiting component can constrain and limit the conveyed hoisted pump core, and in conjunction with the guiding component, it can guide the pump core in the limited state to be conveyed and smoothly introduced into the screw pump housing, thus achieving the guiding effect of horizontal positioning and vertical guidance.

[0018] 3. The feeding assembly can not only carry and guide the screw pump housing to be assembled to the assembly area, but also has a central groove for placing the screw pump housing, ensuring the accuracy of the placement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the guide device for assembling the screw pump of this utility model;

[0020] Figure 2 This is a schematic diagram of the feeding assembly of the guide device for assembling the screw pump of this utility model;

[0021] Figure 3 This is a schematic diagram of the assembly of the support plate and the limiting component of the guide device for assembling the screw pump of this utility model;

[0022] Figure 4 This is a schematic diagram of the support plate and guide assembly of the guide device for assembling the screw pump of this utility model;

[0023] Figure 5 This is a schematic diagram of the docking component structure of the guide device for assembling the screw pump of this utility model.

[0024] Figure label:

[0025] 100. Base; 101. Mounting slot;

[0026] 200. Support plate; 201. Guide opening;

[0027] 300. Feeding assembly; 301. Threaded rod one; 302. Guide rail one; 303. Guide seat; 304. Placement slot;

[0028] 400. Guide assembly; 401. Electric telescopic cylinder; 402. Slide rod one; 403. Threaded rod two; 404. Mounting housing; 405. Guide rail two; 406. Guide block; 407. Positioning rod;

[0029] 500. Limiting assembly; 501. Opposing threaded rod; 502. Guide block; 503. Limiting piece; 504. Mounting base;

[0030] 600. Lifting hook;

[0031] 700. Connecting component; 701. Connecting rod; 702. Positioning hole; 703. Threaded post; 704. Hanging port. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example: This utility model provides a technical solution for a guiding device for screw pump assembly, such as... Figures 1-5As shown, the device includes: a base 100 with a mounting groove 101 on its top, a feeding assembly 300 mounted on the top of the mounting groove 101, support plates 200 fixed to both sides of the top of the base 100, a limiting assembly 500 mounted on the top of the outer side of the support plate 200, and the positioning end of the limiting assembly 500 extending through to the inner side of the support plate 200; a guide assembly 400 mounted on the support plate 200 below the limiting assembly 500, and the guide portion of the guide assembly 400 located inside the support plate 200; the base 100 enables the placement of the device. The loading assembly 300 not only carries and guides the screw pump housing to be assembled to the assembly area, but also has a central groove for placing the screw pump housing to ensure accurate placement. The support plate 200 is a load-bearing component that supports and installs the guide assembly 400 and the limiting assembly 500. The limiting assembly 500 can constrain and limit the conveyed hoisted pump core, and work with the guide assembly 400 to guide and connect it, so that the pump core in the limited state can be guided and smoothly introduced into the screw pump housing.

[0034] The hook 600 is equipped with a docking component 700. The hook 600 and the docking component 700 jointly lift the pump core. The hook 600 is installed and connected to the lifting equipment, and the docking component 700 is used to dock and lift the pump core, so that the pump core can be smoothly lifted and transported to the assembly area. The docking component 700 can be combined and assembled with the guide component 400. The guide component 400 is used to connect the docking component, thus completing the indirect positioning of the pump core and ensuring that the pump core can be smoothly docked and assembled.

[0035] The feeding assembly 300 includes a threaded rod 301, a guide seat 303, and a placement groove 304. The guide seat 303 is slidably connected to the bottom of the mounting groove 101, and the placement groove 304 is fixedly connected to the top of the guide seat 303. The threaded rod 301, which is threadedly connected to the guide seat 303, is connected to the inside of the mounting groove 101. The placement groove 304 enables accurate placement of the screw pump housing, so that personnel do not need to frequently adjust the placement position of the screw pump housing during placement. Driven by the threaded rod 301, the placed screw pump housing is guided to the assembly area, ensuring the progress of the operation.

[0036] The guide assembly 400 includes an electric telescopic cylinder 401, a mounting shell 404, a guide block 406, and a positioning rod 407. The electric telescopic cylinder 401 is fixedly connected to the outer side of the support plate 200. The output end of the electric telescopic cylinder 401 passes through the support plate 200 and is connected to the mounting shell 404. The guide block 406 is slidably connected inside the mounting shell 404, and the positioning rod 407 is fixedly connected to the outer side of the guide block 406. The extension and retraction of the electric telescopic cylinder 401 can drive the front-end assembly into or out of the limit state, ensuring that the positioning rod 407 can achieve the required opposing limit purpose. By using the up and down sliding of the guide block 406 within the mounting shell 404, the synchronous movement of the positioning rod 407 can be completed, ensuring that the pump core, when in the limit state, can smoothly dock and assemble with the screw pump housing.

[0037] In one embodiment, two sets of guide rails 302 are fixedly connected to the bottom of the mounting groove 101, and the guide rails 302 are slidably connected to the guide seat 303. The guide rails 302 can ensure the smoothness of the guide seat 303 during movement and play a role in bearing the sliding effect.

[0038] In one embodiment, the limiting component 500 includes opposing threaded rods 501, guide blocks 502, limiting plates 503, and mounting seats 504. A guide opening 201 is provided on the support plate 200. Two sets of mounting seats 504 are fixedly connected to the outer side of the support plate 200. Opposing threaded rods 501 are mated and installed inside the mounting seats 504. Two sets of guide blocks 502 are threaded onto the opposing threaded rods 501. Limiting plates 503, penetrating the guide openings 201, are fixedly connected to the sides of the guide blocks 502. When the pump core is hoisted to the assembly area, the motor can be started to drive the opposing threaded rods 501 to rotate in both directions, thereby driving the guide blocks 502 in opposite directions and ensuring that the limiting plates 503 converge until the mating components 700 are clamped and positioned, ensuring that the centerline of the pump core is positioned.

[0039] In one embodiment, two sets of sliding rods 402 are fixedly connected to the inner side of the mounting shell 404. The sliding rods 402 penetrate the support plate 200. A threaded rod 403 is installed inside the mounting shell 404, and the guide block 406 is threadedly connected to the threaded rod 403. A guide rail 405 is fixedly connected to the inner wall of the mounting shell 404, and the guide rail 405 is slidably connected to the guide block 406. The sliding rods 402 serve as guides, ensuring that the mounting shell 404 can be stably guided by the telescopic cylinder. The threaded rods 403 drive the guide block 406, and with the cooperation of the guide rails 405, the guide block 406 moves up and down within the mounting shell 404.

[0040] In one embodiment, the docking component 700 includes a docking rod 701 and a threaded post 703. The docking rod 701 is hung on the hook 600, and the threaded post 703 is installed at the bottom of the docking rod 701. The docking rod 701 is provided with a positioning hole 702 and a hanging opening 704. The positioning hole 702 corresponds to and engages with the positioning rod 407, and the hanging opening 704 engages with the hook 600. The hanging opening 704 and the hook 600 achieve a lifting connection with the docking rod 701, and the docking rod 701 can be docked with the pump core mounting hole through the threaded post 703, thus completing the lifting of the pump core. When the docking rod 701 is limited, the positioning rod 407 can be docked with the positioning hole 702, completing the docking and positioning before guidance.

[0041] As one embodiment, one end of each of the threaded rod 301, threaded rod 403, and opposing threaded rod 501 is equipped with a servo motor for driving rotation. The servo motors are mounted on the mounting parts of the threaded rods 301, 403, and 501, thereby driving the threaded rods 301, 403, and 501 to rotate, and causing the components on the threaded rods 301, 403, and 501 to achieve their respective operational purposes.

[0042] In specific implementation of this utility model:

[0043] S1. During this period, the personnel first place the screw pump housing in the slot 304, and through the drive of the threaded rod 301, complete the transmission to the guide seat 303 until the placed screw pump housing is guided to the assembly area.

[0044] S2. The hook 600 is connected to the hoisting equipment using a hoisting rope. The threaded post 703 completes the docking with the pump core mounting hole, and then the pump core is docked and hoisted, so that the pump core can be smoothly hoisted and transported to the assembly area.

[0045] S3. When the pump core is hoisted to the assembly position, the servo motor can be started to drive the opposing threaded rod 501, causing the guide block 502 to drive the limiting plate 503 to move in opposite directions. The limiting plates 503 converge until they complete the clamping and positioning of the docking rod 701, thus determining the lateral centerline of the pump core and pump housing. Then, the electric telescopic cylinder 401 is started, pushing the mounting shell 404 and driving the positioning rod 407 forward until it is inserted into the positioning hole 702. This causes the positioning hole 702 on the docking rod 701 to align with the positioning rod 407, thus aligning the positioning holes 702 on both sets of docking rods 701 with the positioning rod 407. Once the positioning rod 407 is aligned, the longitudinal center of the pump core and the pump casing is determined. Then, the limiting plate 503 is released from its position on the docking rod 701, allowing the threaded rod 403 to drive the guide block 406. This causes the guide block 406 to lower the positioning rod 407, which is aligned with the pump core, until the docking assembly is complete. The electrical components of the device are electrically connected to the control system in the workshop via wires. This system can use a PLC controller. Furthermore, the motors and telescopic cylinders mentioned above are all existing and widely used in this field. The appropriate model and type can be selected based on the actual operation, so their operating techniques will not be elaborated further.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A guide device for assembling a screw pump, characterized in that, include: The base has a mounting groove on its top, and a feeding component is mounted on the top of the mounting groove. Support plates are fixed to both sides of the top of the base. Limiting components are mounted on the top of the outer side of the support plates, and the positioning end of the limiting components extends through to the inner side of the support plates. A guide component is mounted on the support plate below the limiting components, and the guide part of the guide component is located on the inner side of the support plates. The hook is equipped with a docking component, and the pump core is lifted by the hook and the docking component together. The feeding assembly includes a threaded rod, a guide seat, and a placement groove. The guide seat is slidably connected to the bottom of the mounting groove, and the placement groove is fixedly connected to the top of the guide seat. The threaded rod is threadedly connected to the guide seat inside the mounting groove. The guide assembly includes an electric telescopic cylinder, a mounting shell, a guide block, and a positioning rod. The electric telescopic cylinder is fixed to the outside of the support plate. The output end of the electric telescopic cylinder passes through the support plate and is connected to the mounting shell. The guide block is slidably connected inside the mounting shell, and the positioning rod is fixed to the outside of the guide block.

2. The guide device for assembling a screw pump according to claim 1, characterized in that: Two sets of guide rails are fixedly connected to the bottom of the mounting groove, and the guide rails are slidably connected to the guide seat.

3. The guide device for assembling a screw pump according to claim 2, characterized in that: The limiting assembly includes opposing threaded rods, guide blocks, limiting plates, and mounting seats. A guide opening is provided on the support plate. Two sets of mounting seats are fixedly connected to the outer side of the support plate. Opposing threaded rods are installed in the mounting seats. Two sets of guide blocks are threaded onto the opposing threaded rods. Limiting plates that penetrate the guide opening are fixedly connected to the side of the guide blocks.

4. A guide device for assembling a screw pump according to claim 3, characterized in that: Two sets of sliding rods are fixedly connected to the inner side of the mounting shell. The sliding rods pass through the support plate. Threaded rods are installed inside the mounting shell and the guide block is threaded through and connected by the threaded rods. Guide rails are fixedly connected to the inner wall of the mounting shell and are slidably connected to the guide block.

5. A guide device for assembling a screw pump according to claim 4, characterized in that: The docking component includes a docking rod and a threaded post. The docking rod is hung on the hook, and the threaded post is installed at the bottom of the docking rod. The docking rod is provided with positioning holes and hanging openings. The positioning holes are matched with the positioning rods, and the hanging openings are matched with the hooks.

6. A guide device for assembling a screw pump according to claim 5, characterized in that: Each of the threaded rod one, threaded rod two, and the opposing threaded rod is equipped with a servo motor for driving rotation at one end.

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